20053233 has 6 divisors (see below), whose sum is σ = 28965794. Its totient is φ = 13368816.

The previous prime is 20053211. The next prime is 20053237. The reversal of 20053233 is 33235002.

It can be written as a sum of positive squares in only one way, i.e., 12616704 + 7436529 = 3552^2 + 2727^2 .

It is not a de Polignac number, because 20053233 - 2¹⁰ = 20052209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20053237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1114060 + ... + 1114077.

Almost surely, 2^20053233 is an apocalyptic number.

It is an amenable number.

20053233 is a deficient number, since it is larger than the sum of its proper divisors (8912561).

20053233 is a wasteful number, since it uses less digits than its factorization.

20053233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228143 (or 2228140 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 20053233 is about 4478.0836303044. The cubic root of 20053233 is about 271.6823759635.

Adding to 20053233 its reverse (33235002), we get a palindrome (53288235).

The spelling of 20053233 in words is "twenty million, fifty-three thousand, two hundred thirty-three".